The island that became a territory of the United States after the overthrow of Queen Liliuokalani.

The island that became a territory of the United States after the overthrow of Queen Liliuokalani is Hawaii. Here are the steps:

1. Queen Liliuokalani was the last monarch of the Kingdom of Hawaii. She reigned from January 29, 1891, until the overthrow of the Kingdom of Hawaii on January 17, 1893.

2. The overthrow was led by a group of businessmen and sugar planters who were mostly of American descent. They formed a Committee of Safety with the aim of annexing Hawaii to the United States.

3. The Committee of Safety, with the support of the U.S. Minister to Hawaii, John L. Stevens, and a contingent of U.S. Marines, staged a coup against Queen Liliuokalani.

4. Queen Liliuokalani was arrested and forced to abdicate her throne. She was later placed under house arrest at Iolani Palace in Honolulu.

5. Following the overthrow, the Committee of Safety established a Provisional Government of Hawaii with Sanford B. Dole as President.

6. On July 7, 1898, the United States annexed Hawaii through the Newlands Resolution, making it a territory of the United States.

7. Hawaii remained a U.S. territory until August 21, 1959, when it became the 50th state of the United States.